[NOT FOR LANDING] Detailed loading traces

content/browser/loader/sync_resource_handler.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/loader/sync_resource_handler.h"
 
+#include "base/trace_event/trace_event.h"
 #include "base/logging.h"
 #include "content/browser/devtools/devtools_netlog_observer.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_message_filter.h"
 #include "content/browser/loader/resource_request_info_impl.h"
 #include "content/common/resource_messages.h"
 #include "content/public/browser/resource_dispatcher_host_delegate.h"
 #include "content/public/browser/resource_request_info.h"
 #include "net/base/io_buffer.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/redirect_info.h"
 
 namespace content {
 
 SyncResourceHandler::SyncResourceHandler(
     net::URLRequest* request,
     IPC::Message* result_message,
     ResourceDispatcherHostImpl* resource_dispatcher_host)
     : ResourceHandler(request),
       read_buffer_(new net::IOBuffer(kReadBufSize)),
       result_message_(result_message),
       rdh_(resource_dispatcher_host),
       total_transfer_size_(0) {
   result_.final_url = request->url();
 }
 
 SyncResourceHandler::~SyncResourceHandler() {
+  TRACE_EVENT0("toplevel", "SyncResourceHandler::~SyncResourceHandler");
+
   if (result_message_) {
     result_message_->set_reply_error();
     ResourceMessageFilter* filter = GetFilter();
     // If the filter doesn't exist at this point, the process has died and isn't
     // waiting for the result message anymore.
     if (filter)
       filter->Send(result_message_);
   }
 }
 
@@ skipping 89 matching lines @@
   result_message_ = NULL;
   return;
 }
 
 void SyncResourceHandler::OnDataDownloaded(int bytes_downloaded) {
   // Sync requests don't involve ResourceMsg_DataDownloaded messages
   // being sent back to renderers as progress is made.
 }
 
 }  // namespace content